Daily Bolus of LR: Femoral lines to measure CVP

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June 16, 2011 by dailybolusoflr

Can I use a femoral lines to measure CVP?

 

When the IJ or subclavian site are not options, the femoral location is a good back-up option for obtaining central venous access. 

 

The question of whether or not you can reliably obtain a central venous pressure from these lines was investigated in a short review in Emergency Medicine Journal which focused on the results of 9/141 studies found in their medline search.

 

http://emj.bmj.com/content/20/5/467.2.full.pdf

scroll to the correct page- see reference below

(ref: Emerg Med J. 2003 Sep;20(5):467-9)

 

 

Take home message:

 

·         The readings from IVC (femoral lines) appear to be about 0.5mm Hg lower than the SVC (IJ and SC lines) readings and were rarely more than 3mm Hg different. 

·         The only subset of patients that this may not be accurate is in patients with abdominal compartment syndrome (ref: Crit Care & Shock 2008. Vol 11, No. 3)

 

 

 

Linda Regan, MD FACEP

Program Director, Emergency Medicine Residency

Johns Hopkins Medical Institutions

 

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